US4739338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive transfer recording method
Assignee: Canon Inc
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Filing: 1986-07-03
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Granted: 1988-04-19
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Expires: 2006-07-03
Abstract
Abstract A heat-sensitive transfer recording method comprises superposing a heat-sensitive transfer material having a heat-transferable ink layer on a supporting member onto a medium for recording and heating said heat-transferable ink layer according to a pattern to thereby form a transfer recorded image on said medium for recording, wherein said heat-transferable ink layer comprises a layer containing fine particles of a heat-fusible resin and said heat-sensitive transfer material after heating is separated from said medium for recording within the time from when the strength of the film formed by fusion of the fine particles of the heat-fusible resin at said pattern heated portion begins to surpass that before heating until initiation of fusion of fine particles of the heat-fusible resin around the pattern heated portion by thermal diffusion to around the pattern heated portion.
Inventors
- 👤 Kazumi Tanaka
- 👤 Masato Katayama
- 👤 Hiroshi Sato
- 👤 Yasuyuki Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:28
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38278
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
133 words
A heat-sensitive transfer recording method comprising superposing a heat-sensitive transfer material having a heat-transferable ink layer on a supporting member onto a medium for recording and heating said heat-transferable ink layer according to a pattern to thereby form a transfer recorded image on said medium for recording, wherein said heat-transferable ink layer comprises a layer containing fine particles of a heat-fusible resin and said heat-sensitive transfer material after heating is separated from said medium for recording within the time from when the strength of the film formed by fusion of the fine particles of the heat-fusible resin at said pattern heated portion begins to surpass that before heating until initiation of fusion of fine particles of the heat-fusible resin around the pattern heated portion by thermal diffusion to around the pattern heated portion.
Claim 2
Dependent Claim
133 words
A heat-sensitive transfer recording method comprising superposing a heat-sensitive transfer material having a heat-transferable ink layer on a supporting member onto a medium for recording and heating said heat-transferable ink layer according to a pattern to thereby form a transfer recorded image on said medium for recording, wherein said heat-transferable ink layer comprises a layer containing fine particles of a heat-fusible resin and said heat-sensitive transfer material after heating is separated from said medium for recording within the time from when the strength of the film formed by fusion of the fine particles of the heat-fusible resin at said pattern heated portion begins to surpass that before heating until initiation of fusion of fine particles of the heat-fusible resin around the pattern heated portion by thermal diffusion to around the pattern heated portion.
Claim 3
Dependent Claim
36 words
A method according to claim 1, wherein the time from said heating to said separation is within the range of from 1 to 300 msec. when the heating source temperature is from 250° to 350° C.
Claim 4
Dependent Claim
19 words
A method according to claim 2, wherein said time is within the range of from 3 to 100 msec.
Claim 5
Dependent Claim
36 words
A method according to claim 1, wherein the time from said heating to said separation is within the range of from 10 to 600 msec. when the heating source temperature is from 300 to 400° C.
Claim 6
Dependent Claim
19 words
A method according to claim 4, wherein said time is within the range of from 20 to 120 msec.
Claim 7
Dependent Claim
27 words
A method according to claim 1, wherein said fine particles of the heat-fusible resin have a softening temperature within the range of from 50° to 160° C.
Claim 8
Dependent Claim
20 words
A method according to claim 6, wherein said softening temperature is within the range of from 60° to 150° C.
Claim 9
Dependent Claim
38 words
A method according to claim 1, wherein said fine particles of the heat-fusible resin having particle sizes within the range from 0.01 to 20 μm comprise 80 wt. % or more of said fine particles as the whole.
Claim 10
Dependent Claim
16 words
A method according to claim 8, wherein said particle sizes are from 0.1 to 10 μm.
Claim 11
Dependent Claim
15 words
A method according to claim 1, wherein said heat-transferable ink layer contains a heat-fusible binder.
Claim 12
Dependent Claim
23 words
A method according to claim 10, wherein said heat-fusible binder has a softening temperature within the range of from 40° to 150° C.
Claim 13
Dependent Claim
20 words
A method according to claim 11, wherein said softening temperature is within the range of from 60° to 140° C.
Claim 14
Dependent Claim
38 words
A method according to claim 1, wherein the amount of said heat-fusible binder is within the range of from 0 to 400 parts by weight per 100 parts by weight of said fine particles of the heat-fusible resin.
Claim 15
Dependent Claim
25 words
A method according to claim 13, wherein the amount of said heat-fusible binder is within the range of from 0 to 200 parts by weight.
Claim 16
Dependent Claim
24 words
A method according to claim 1, wherein the thickness of said heat-transferable ink layer is within the range of from 1 to 20 μm.
Claim 17
Dependent Claim
19 words
A method according to claim 15, wherein said thickness is within the range of from 2 to 15 μm.
References Cited (Backward Citations)
US4281050A
Cited
US4477198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |